Sometimes I get an urge to make some GURPS content, be it something original, or something converted from another system/media. Maybe if I post it here, it will be useful not only to me. Keep in mind that I'm not a native English speaker and please forgive any mistakes.

Poison Gas (HT): Every 5 seconds an iron golem can release a poisonous cloud. It spreads
in a 4-yard radius area around the golem, lasts 10 seconds, and drifts with the
wind. The cloud deals 1d-1 toxic damage every second to all creatures that
inhale the cloud (can be resisted with an HT-1 roll).